4 5
Review later
9
10
4. The measures of the angles in triangle UVW are shown in the diagram below
U
14
(3x - 9)º
30°
24°
W
What is the value of x?
a. 21
b. 39
C. 45
d. 126

Someone me i need with this stuff

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21